125344245123 has 16 divisors (see below), whose sum is σ = 186149216800. Its totient is φ = 83358512640.

The previous prime is 125344245119. The next prime is 125344245139. The reversal of 125344245123 is 321542443521.

It is a happy number.

125344245123 is a `hidden beast` number, since 1 + 2 + 53 + 442 + 45 + 123 = 666.

It is not a de Polignac number, because 125344245123 - 2² = 125344245119 is a prime.

It is a super-2 number, since 2×125344245123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125344245023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5664238 + ... + 5686323.

It is an arithmetic number, because the mean of its divisors is an integer number (11634326050).

Almost surely, 2^125344245123 is an apocalyptic number.

125344245123 is a deficient number, since it is larger than the sum of its proper divisors (60804971677).

125344245123 is a wasteful number, since it uses less digits than its factorization.

125344245123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11350979 (or 11350973 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

Adding to 125344245123 its reverse (321542443521), we get a palindrome (446886688644).

The spelling of 125344245123 in words is "one hundred twenty-five billion, three hundred forty-four million, two hundred forty-five thousand, one hundred twenty-three".